Top Story: Seed corn tech

Bags of corn seed that mix genetically modified hybrids with and without Bt toxins that kill insects provide farmers easier compliance with federal regulations but could, over time, hasten insect resistance to Bt, a Purdue University entomologist said.

Although "refuge-in-a-bag" seed technology has been approved for use by the U.S. Environmental Protection Agency, questions still remain over its long-term effect on corn rootworms, the main pest targeted by the technology, said Christian Krupke.